To use the TL074 buffer section I would, instead of wiring as shown on the wiring diagram, connect the HP BP and LP outputs to the TL074 inputs and then the TL074 outputs to the sockets?
I don't understand the setting up instructions:

Quote:

Adjustments on the vcf board are basic. Set trimmer so that the VCF's center frequency as at an appropriate pitch.

hmm... just noticed this on kens page for the Serge filter: "Those assembling the Euro version of this module..."

hotdamn.

the full quote says

"Those assembling the Euro version of this module will need to substitute two of the regular pots and the spst switches for combined units available from Mouser. P/N: 313-1600F-50k "

this is probably copy-pasted over from the VCS page
unfortunately the VCF has no switches so theres no need for theres mouser parts so theres probably not a euro board planned...._________________az/gde
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unfortunately the VCF has no switches so theres no need for theres mouser parts so theres probably not a euro board planned....

there can be a switch -
also from the VCF page - "A DPDT switch can be added to short points F and G to 0V. Doing this will switch the filter into low-frequency mode, as per the VCFX (for CV filtering etc.). While the original Serge boards had this function, it is doubtful it was ever brought out to the panel. "

this is a worthwhile mod, CV filtering is and a rather unusual feature for a VCF.

Built a pair of these a few months ago, just want to chime in that they are SWEEEEEET and well worth the time and expense. You can probably hear plenty of this filter in these tracks...._________________Esoteric drones and nonlinear distortion
Custom/handmade experimental instruments
macumbista.net

Is anyone else finding that the CV inputs go wild really quickly? Seems like way more than 1V/Oct. Just a little tweak off center in either positive or negative direction and the modulation is extremely wide. I'm using 25K lin pots instead of the listed 20K, but that shouldn't account for such an extreme amount of input._________________Esoteric drones and nonlinear distortion
Custom/handmade experimental instruments
macumbista.net

Is anyone else finding that the CV inputs go wild really quickly? Seems like way more than 1V/Oct. Just a little tweak off center in either positive or negative direction and the modulation is extremely wide. I'm using 25K lin pots instead of the listed 20K, but that shouldn't account for such an extreme amount of input.

this filter has become one of my favorites
its specially brilliant for pinging sounds
but probably because of its wide cv range (?) its resonance loves to freak out ;-(
also the bipolar attenuator dosent close completely
i actually would prefer a uni polar attenuator
any idea how to make this filter more controllable ?

well, can answer my last question now on my own... yes it works with 2SK30... probably not as in the original but i think it Sound smooth and fine...
what makes me wonder is that my filter does self-oscillate without those modifications Ken mentioned on his site... hmm... and the volume doesn't drop either it increases a lot..._________________https://soundcloud.com/bastian-j

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